package com.example.shirodemo.config;

import org.apache.shiro.mgt.SecurityManager;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.LinkedHashMap;
import java.util.Map;

@Configuration
public class ShiroConfig {

    /**
     * anon:所有url都都可以匿名访问
     * authc: 需要认证才能进行访问
     * user:配置记住我或认证通过可以访问
     * @param securityManager
     * @return
     */
    @Bean
    public ShiroFilterFactoryBean shiroFilter(SecurityManager securityManager){
        System.out.println("ShiroConfiguration.shiroFilter()");
        ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
        shiroFilterFactoryBean.setSecurityManager(securityManager);

        //拦截器
        Map<String, String> filterChainDefinitionMap = new LinkedHashMap<String, String>();
        //配置不会被拦截的链接 顺序判断
        filterChainDefinitionMap.put("/static/**", "anon");
        //配置退出 过滤器，其中的具体退出代码Shiro已经实现
        filterChainDefinitionMap.put("/logout", "logout");
        //<!-- 过滤链定义，从上向下顺序执行，一般将/**放在最为下边 -->:这是一个坑呢，一不小心代码就不好使了;
        //<!-- authc:所有url都必须认证通过才可以访问; anon:所有url都都可以匿名访问-->
        filterChainDefinitionMap.put("/**", "authc");
        //如果不设置默认会自动寻找Web工程跟目录下的"/login.jsp"页面
        shiroFilterFactoryBean.setLoginUrl("/login");
        //登陆成功后要跳转的链接
        shiroFilterFactoryBean.setSuccessUrl("/index");

        //未授权界面;
        shiroFilterFactoryBean.setUnauthorizedUrl("/403");
        shiroFilterFactoryBean.setFilterChainDefinitionMap(filterChainDefinitionMap);
        return shiroFilterFactoryBean;
    }

    @Bean
    public MyShiroRealm myShiroRealm(){
        MyShiroRealm myShiroRealm = new MyShiroRealm();
        return myShiroRealm;
    }

    @Bean
    public SecurityManager securityManager(){
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        securityManager.setRealm(myShiroRealm());
        return securityManager;
    }
}
